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Computational Algorithms for Induction-Motor Equivalent Circuit Parameter Determination—Part I: Resistances and Leakage Reactances

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3 Author(s)
Aldo Boglietti ; Department of Electrical Engineering, Politecnico di Torino, Torino, Italy ; Andrea Cavagnino ; Mario Lazzari

This paper deals with methods and algorithms for the estimation of induction-motor equivalent circuit parameters starting from the geometrical and electrical data generally available after an electromagnetic design. The main aim of this paper is to help the readers pass from the theoretical analysis to the numerical code suitable to be included in its own design software. For this reason, the step-by-step algorithms are included in this paper. Some of the methods are based on well-known approaches while the other ones are original. For the latter ones, a complete discussion of the theoretical analysis is reported and discussed. The first part deals with the stator- and rotor-resistance computations and the determination of the leakage inductances based on an original flux classification. Finally, the skewing slot effects on the machine parameters are provided. The comparison between computed and measured values confirms the accuracy of the proposed computational algorithms.

Published in:

IEEE Transactions on Industrial Electronics  (Volume:58 ,  Issue: 9 )